[A surgical case report of isolated congenital tricuspid valve insufficiency]

A 17-year-old boy observed as a case with Ebstein's anomaly. Echocardiogram and ventriculogram revealed enlargement of the tricuspid valve ring, dysplasia of anterior and posterior leaflet of tricuspid valve, but the anatomy of the septal leaflet was almost normal. According to these findings, the diagnosis of this patient was isolated congenital tricuspid regurgitation. Tricuspid annuloplasty of DeVaga's method and Reed's method were done. Post-operative residual regurgitation was mild. These procedures were resulting in a successful course. Isolated congenital tricuspid valve insufficiency was extremely rare. Only 7 cases of isolated congenital tricuspid insufficiency successfully operated in Japan were collected.